This paper has an introduction on switch management system which can configure the switch into the desired operation state based on both the user input and the default setting (hardcoded). The configuration should include the ingress policy, egress policy, QoS (Quality of Server), IGMP snooping, rate limiting, address database setting, port state setting, aging time, and some other parameters to be determined at design time. The switch should be always turned on its QoS feature, IGMP Snooping feature, and Rate Limiting feature and should allow the users to specify which priority traffic or which traffic type to be rate limited. It also has a further analysis on the QoS design of the ICIE (Intelligent Controller for Industrial Ethernet)module architecture which adopts the standard IEEE 802.1D/Q tag and the Differentiated Services (DiffServ) QoS mechanisms to mark different application message packets with different relative priorities.
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